 
 (def win (repeat 3 (repeat 3 \x)))
 
-(def horizontal-win [[\o \o \o]
-                     [nil nil nil]
-                     [nil nil nil]])
+(def horizontal-win
+  [[\o \o \o]
+   [nil nil nil]
+   [nil nil nil]])
 (def horizontal-win-second
   [[nil nil nil]
    [\o \o \o]

   [nil nil \o]
   [nil nil \o]])



(deftest tic-tac-toe-test


    (is (true? (vertical-line? vertical-win-second)))
    (is (true? (vertical-line? vertical-win-third)))

    (is (true? (diagonal-line? diagonal-win)))
    (is (true? (diagonal-line? diagonal-win-second)))

    (is (false? (player-win?)))
    (is (true? (player-win? horizontal-win))))
)
